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T1590.005 IP Addresses

Adversaries may gather the victim’s IP addresses that can be used during targeting. Public IP addresses may be allocated to organizations by block, or a range of sequential addresses. Information about assigned IP addresses may include a variety of details, such as which IP addresses are in use. IP addresses may also enable an adversary to derive other details about a victim, such as organizational size, physical location(s), Internet service provider, and or where/how their publicly-facing infrastructure is hosted.

Adversaries may gather this information in various ways, such as direct collection actions via Active Scanning or Phishing for Information. Information about assigned IP addresses may also be exposed to adversaries via online or other accessible data sets (ex: Search Open Technical Databases).123 Gathering this information may reveal opportunities for other forms of reconnaissance (ex: Active Scanning or Search Open Websites/Domains), establishing operational resources (ex: Acquire Infrastructure or Compromise Infrastructure), and/or initial access (ex: External Remote Services).

Item Value
ID T1590.005
Sub-techniques T1590.001, T1590.002, T1590.003, T1590.004, T1590.005, T1590.006
Tactics TA0043
Platforms PRE
Version 1.0
Created 02 October 2020
Last Modified 15 April 2021

Procedure Examples

ID Name Description
G0138 Andariel Andariel has limited its watering hole attacks to specific IP address ranges.5
G0125 HAFNIUM HAFNIUM has obtained IP addresses for publicly-accessible Exchange servers.6
G0059 Magic Hound Magic Hound has captured the IP addresses of visitors to their phishing sites.4


ID Mitigation Description
M1056 Pre-compromise This technique cannot be easily mitigated with preventive controls since it is based on behaviors performed outside of the scope of enterprise defenses and controls. Efforts should focus on minimizing the amount and sensitivity of data available to external parties.